5 results for Senior Web Developer in Toronto, ON

Senior Full Stack Developer

Mississauga, ON
onsite
Permanent
100000 - 115000 CAD / Yearly
We are seeking a talented Senior Full Stack Developer to join our client's team in Mississauga, Ontario. The successful candidate will work closely with the business to identify and define the best solutions to address challenges faced by both our customers and internal operations. The Senior Developer will translate functional and non‑functional requirements into clear designs and implementation strategies, ensuring the effective delivery of business applications. They will be responsible for the quality of all deliverables, ensuring that solutions are reliable, fit for purpose, and built to be supportable and maintainable over the long term. Technical Skills<ul><li>Programming: J2EE, JPA, Java Web Services (RESTful), Spring Framework, Angular, Maven</li><li>Tools: Jira, Confluence, GitHub</li><li>Databases: Relational database systems (ideally Oracle), PL/SQL, SQL Query development</li><li>Operating Systems: Linux, HP‑UX or other UNIX variants, Windows</li><li>Architecture: Experience in multi‑platform distributed environments, web‑based architectures, and microservices</li><li>Design: Familiarity with standard design patterns and UML</li><li>DevOps: Experience with CI/CD automation processes</li></ul>
2026-06-09T00:00:00Z

.NET Developer Lead

North York, ON
onsite
Contract / Temporary
63.3365 - 73.337 CAD / Hourly
We are looking for an experienced .NET Developer Lead to join a hospitality organization in Toronto, Ontario on a Long-term Contract position. This role is well suited to a senior backend specialist who can guide technical delivery while building scalable services and modern API solutions. The successful candidate will bring strong expertise in .NET development, Azure cloud technologies, and TypeScript, along with the ability to collaborate effectively in a hybrid work environment. Responsibilities: • Lead the design, development, and enhancement of backend applications using the .NET ecosystem. • Build and maintain microservices and RESTful APIs that support reliable, scalable business operations. • Provide technical direction to the development team and promote strong coding standards and engineering best practices. • Develop cloud-based solutions on Microsoft Azure, with a focus on performance, stability, and maintainability. • Work closely with cross-functional partners to translate business needs into practical technical solutions. • Support front-end integration activities where needed, including collaboration on TypeScript-based components and web functionality. • Use Jira and related tracking tools to manage work items, monitor progress, and resolve defects efficiently. • Participate in the hybrid work model by attending the Toronto, Ontario office two days per week on scheduled in-office days.
2026-06-17T00:00:00Z

Software Developer

Toronto, ON
onsite
Permanent
110000 - 120000 CAD / Yearly
We are looking for a Software Developer to join a team delivering cloud-based backend solutions in Burlington, Ontario. In this role, you will contribute across planning, development, validation, and ongoing application support while working in a collaborative Agile and DevOps setting. The position focuses on building reliable APIs, data-focused services, and emerging AI-enabled capabilities that strengthen existing platforms. This opportunity is well suited to a mid-level developer with strong C# and .NET experience, solid cloud knowledge, and a practical approach to building scalable software. Responsibilities:• Design, build, and enhance backend applications that support cloud-hosted software products and services.• Develop and maintain APIs and service layers that enable secure, efficient, and scalable system integration.• Participate in the full software development lifecycle, including technical design, coding, testing, deployment, and production issue resolution.• Work closely with product and engineering stakeholders to translate business needs into maintainable technical solutions.• Create data-driven functionality that supports application performance, reliability, and informed decision-making.• Contribute to AI-related features, including the incorporation of intelligent capabilities into established systems where appropriate.• Support DevOps practices by contributing to source control, automated delivery workflows, and continuous improvement of release processes.• Troubleshoot defects, investigate root causes, and implement fixes to maintain a high standard of product quality.
2026-06-24T00:00:00Z

Senior Database Administrator

Mississauga, ON
onsite
Permanent
95000 - 115000 CAD / Yearly
We are looking for an experienced Senior Database Administrator to support an organization in Mississauga, Ontario. This position is suited to a senior technical specialist who can strengthen database reliability, guide architectural decisions, and improve performance across enterprise environments. The role works closely with delivery teams and business partners to ensure database solutions are scalable, secure, and aligned with operational priorities. Responsibilities:• Establish and oversee database performance and capacity strategies, including standards that support long-term stability and growth.• Partner with project managers, developers, and business analysts to deliver database components for concurrent business and technology initiatives.• Investigate and resolve production database issues, including performance concerns linked to application code and data processing.• Create detailed testing approaches and maintain reusable scripts to validate database changes before release.• Review requested changes, assess downstream impact, and provide informed estimates for effort, timelines, and implementation considerations.• Develop and maintain automation and support scripts using Perl, shell scripting, and PL/SQL for monitoring, maintenance, and operational support.• Design and implement database architecture across development, test, and production environments to ensure consistency and resiliency.• Participate in an after-hours support rotation to address urgent database incidents and maintain service continuity.
2026-06-18T00:00:00Z

Cyber Security Engineer

Toronto, ON
remote
Contract / Temporary
80 - 95 CAD / Hourly
We are looking for a Cyber Security Consultant to join a contract opportunity in Toronto, Ontario. This role will focus on evaluating security posture, identifying gaps, and driving remediation efforts related to a recently acquired business while quickly becoming effective in a complex technical environment. The successful candidate will bring strong Azure cloud security expertise, work closely with engineering and DevOps teams, and maintain thorough documentation to support ongoing internal follow-through. The candidate must have extensive experience conducting security assessments and audits and providing recommendations. This is a fully remote 6 month contract role looking for an individual available immediately. Responsibilities:• Conduct comprehensive security reviews of cloud and application environments to identify risks, control gaps, and remediation priorities.• Assess the acquired organization's security posture and provide practical recommendations that support due diligence and integration planning.• Implement corrective actions for identified vulnerabilities and weaknesses, with a focus on strengthening Azure-based environments.• Partner with engineering and DevOps teams to align security controls with technical realities and communicate required changes clearly.• Prepare detailed documentation of findings, recommendations, actions taken, and outstanding items to enable effective knowledge transfer.• Perform or support internal penetration testing activities to validate exposures and confirm the effectiveness of security measures.• Advise on compliance-related considerations and ensure security assessments reflect applicable organizational obligations.• Contribute to the onboarding and alignment of security tools where capacity allows, including reviewing existing platforms used by the acquired business.
2026-06-23T00:00:00Z